Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 226 · 40 sums

The method (Count on): Start with the bigger number. Count on the smaller number, one finger at a time. For a missing number (8 + ? = 15), count on from 8 up to 15, or take away: 15 − 8.

1. 1.14 + ? = 16
2. 2.5 + 7 + 3 =
3. 3.Rahul has 9 pencils and gets 7 pencils more. How many pencils does Rahul have now?
4. 4.5 + 12 =
5. 5.17 + ? = 18
6. 6.There are 4 white crayons and 13 blue crayons. How many crayons are there in all?
7. 7.4 + 5 + 6 =
8. 8.2 + ? = 4
9. 9.Lakshmi has 9 books and gets 6 books more. How many books does Lakshmi have now?
10. 10.There are 12 white crayons and 6 pink crayons. How many crayons are there in all?
11. 11.Diya has 4 crayons and gets 9 crayons more. How many crayons does Diya have now?
12. 12.19 + 1 =
13. 13.15 + 3 =
14. 14.2 + 1 + 2 =
15. 15.Gurpreet has 8 pencils and gets 6 pencils more. How many pencils does Gurpreet have now?
16. 16.Tara has 11 laddoos and gets 8 laddoos more. How many laddoos does Tara have now?
17. 17.Dev has 13 kites and gets 4 kites more. How many kites does Dev have now?
18. 18.? + 4 = 11
19. 19.? + 5 = 6
20. 20.7 + 6 =
21. 21.5 + 4 =
22. 22.There are 3 pink beads and 5 blue beads. How many beads are there in all?
23. 23.17 + 2 =
24. 24.14 + 3 =
25. 25.15 + 5 =
26. 26.18 + 2 =
27. 27.2 + 14 =
28. 28.Riya has 5 crayons and gets 11 crayons more. How many crayons does Riya have now?
29. 29.Pooja has 3 mangoes and gets 8 mangoes more. How many mangoes does Pooja have now?
30. 30.6 + ? = 11
31. 31.? + 2 = 3
32. 32.14 + ? = 15
33. 33.2 + 2 + 7 =
34. 34.5 + ? = 11
35. 35.9 + 6 =
36. 36.13 + 2 =
37. 37.5 + 5 + 7 =
38. 38.3 + ? = 16
39. 39.10 + 6 =
40. 40.There are 8 red crayons and 10 green crayons. How many crayons are there in all?

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